文献类型：期刊文献

英文题名：Rational structural design of vanillin based vitrimers in one-pot to facilely fabricate highly stretchable and sensitive composite strain sensor

作者：Zhang, Daihui[1,2] Cheng, Zenghui[1,2] Gao, Shishuai[1,2] Shi, Hao[3]

第一作者：Zhang, Daihui;张代晖

通信作者：Zhang, DH[1]

机构：[1]Chinese Acad Forestry, Inst Chem Ind Forest Prod, Natl Engn Lab Biomass Chem Utilizat,Key Lab Bioma, Key Lab Chem Engn Forest Prod,Natl Forestry & Gra, Nanjing 210042, Jiangsu, Peoples R China;[2]Nanjing Forestry Univ, Coinnovat Ctr Efficient Proc & Utilizat Forest Re, Nanjing 210037, Jiangsu, Peoples R China;[3]Huaiyin Inst Technol, Jiangsu Prov Engn Lab Biomass Convers & Proc Inte, Huaian 223003, Peoples R China

年份：2022

卷号：279

外文期刊名：MATERIALS CHEMISTRY AND PHYSICS

收录：;EI(收录号：20220311471046);Scopus(收录号：2-s2.0-85122725135);WOS:【SCI-EXPANDED(收录号:WOS:000763889200002)】；

基金：We acknowledge the support from National Natural Science Foundation for Youth (32001283) , Jiangsu Provincial Engineering Laboratory for Biomass Conversion and Process Integration (JPELBCPI2018002) , and National Natural Science Foundation of China (31890774) .

语种：英文

外文关键词：Vanillin; Polymeric composite; Thiol-epoxy; Schiff base; Sensor

摘要：The preparation of high performance and multifunctional strain sensors by a facile fabrication process is highly desirable but still challenging. In this study, vanillin based vitrimers were simply synthesized in one-pot by the combination of thiol-epoxy and amine-aldehyde reactions, which was used for strain sensor fabrication. The reaction kinetics were extensively investigated by H-1 NMR analysis to demonstrate the feasibility to prepare vitrimers in one-pot. The physicochemical properties and dynamic natures of vanillin based vitrimers were then analyzed by various techniques, such as FTIR, DSC and rheometer. The mechanical properties of vitrimers were tunable via controlling the structure of crosslinkers. Moreover, it exhibited a strong UV-adsorption ability to potentially protect the human skins. Due to the enhanced interfacial interaction between vitrimers and silver nanowire layers, and the dynamic feature of Schiff base, the fabrication of strain sensors with sandwich-structures could be facilely realized. The strain sensors show a wide linear response range (0-100%) and a high gauge factor (15.8), which was comparable to previous sensors prepared by complicated steps. This study has demonstrated the potential to combine dynamic covalent chemistry and sustainability to overcome the general challenges in the fabrication of high-performance strain sensors.